Bicycle rack



FIG. 1 is a front elevational view of a bicycle rack showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof, which is a mirror image of a left side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a bicycle rack, as shown and described. 